This is the curling i'm talking about!
Well my curling is due to closeness of the light source. It's less than 1 foot right now b/c of how tall the plant has gotten. Also, my fan was turned to a low setting and pointing in a weird direction. I pointed it to blow exactly between the tops and the light and turned up the fan speed. They're looking mighty fine this morning. Grew again, the one on the right is trying to escape the confines, it slapped me in the face this morning. They're eating an amazing amount of nutes right now. In 48 hours, my nutes went down from 2 EC to 1.4. The curling I have is not b/c of overwatering (can't overwater rockwool) nor too much nutes (leaves are perfectly green). It can be due to salt formation in the rockwool medium (solution is to flush) or if the leaves are curling up (as a few of mine did a few days ago) it's too much heat and most likely b/c the light source is too close (mine is a 600W HPS). I'm not worried now, they got a couple of weeks left! The waxy appearance I think is due to different strains. PS Thanks for the compliments...if anyone has any questions, PM me or rw expert NGT (nongreenthumb), i'll be glad to help.hey man....looking sweet...that rolling or curling....I have a very slight but similar circumstances.....I have been told everything from overwater, to temp (too low), and K deficiency from nute look-up.......I'll be interested to see what peole say to you?
Another comment....when I look at your pics and those of many others, and compare those to mine, I have a sense that yours/others alomst have a "waxy" apperance to the leaves....and mine do not? I do not mean to say this is a prob....in your/others or mine....I just wonder...maybe its strain realted? just cuirous. your grow looking might fine!
Well my curling is due to closeness of the light source. It's less than 1 foot right now b/c of how tall the plant has gotten. Also, my fan was turned to a low setting and pointing in a weird direction. I pointed it to blow exactly between the tops and the light and turned up the fan speed. They're looking mighty fine this morning. Grew again, the one on the right is trying to escape the confines, it slapped me in the face this morning. They're eating an amazing amount of nutes right now. In 48 hours, my nutes went down from 2 EC to 1.4. The curling I have is not b/c of overwatering (can't overwater rockwool) nor too much nutes (leaves are perfectly green). It can be due to salt formation in the rockwool medium (solution is to flush) or if the leaves are curling up (as a few of mine did a few days ago) it's too much heat and most likely b/c the light source is too close (mine is a 600W HPS). I'm not worried now, they got a couple of weeks left! The waxy appearance I think is due to different strains. PS Thanks for the compliments...if anyone has any questions, PM me or rw expert NGT (nongreenthumb), i'll be glad to help.
Np. I think rockwool is the way to go. Very simple, very cheap and i'll be very impressed to see something better. Cannabis is known to grow exceptionally well in RW. In fact most commercial growers in NL grow in rockwool/top-drip systems. I was sceptical at first, tried dwc....failed....and was recommended this and I don't think I could be more impressed. 3, 3 foot tall plants in the grow room right now and covered in buds.thanks man...very instricutive. its interesting in the last couple of days my BigBud have started to develop that waxy appearance.
The other curling thing, thanks. good info to pass along. I have never tried rockwool so learned something new....thanks a million!
I have read somewhere that you should NOT put rock wool into soil? why is that?